Eclipse vs OpenEmu

Eclipse is a web-based emulator for playing games from classic systems: Game Boy, Game Boy Color, Game Boy Advance, NES, SNES, Sega Master System, and Sega Game Gear. It is available on Android, iOS, and web, with a free plan. Games can be added from Google Drive, Dropbox, or the Homebrew selection, or loaded from local files. The interface supports touch, keyboard, and controllers, with editable default bindings; controller compatibility depends on the JavaScript Gamepad API and the operating system. Once the site is cached, uploaded local games can be played offline, although some features, including the Library, are disabled. Save behavior differs by system: NES games do not save, SNES and GB/GBC games should save, and GBA games have some incompatibilities. The GBA core lacks Real Time Clock support, and most GBA games with auto-save functionality are unsupported. Eclipse has no multiplayer features, including Pokémon trading. User data is stored locally on the device.

OpenEmu is free, open-source video game emulation software for macOS. It organizes game backups into a unified library, adds box art and supports collections spanning consoles. Users drag and drop backups for scanning and organization. Modular cores from open-source projects emulate systems including Atari, Game Boy, Nintendo, Sega, Sony PlayStation and Super Nintendo; the project lists 31 supported systems. Generic HID-compliant USB or Bluetooth controllers can work immediately, with automatic mapping for recognized devices. OpenEmu is intended for games users already own, and BIOS files are required. The wiki describes an experimental arcade core plugin that is strictly unsupported. The latest release page identifies OpenEmu 2.4.1 binaries as Intel-only. The official site offers a macOS (OS X) application, but the version requirement was not rendered. The project lists save states, CD audio and cheat support, while online netplay is not available.